Add link to tips and tricks to index

Author: sharkwouter

index.md

@@ -25,6 +25,8 @@ Want to get started, but don't what to build? [Go here](basic_programs.html).
 Your code is not working? [Go here](debugging.html).
 {: .fs-5 }
 
+Want some simple tips and trick to improve your experience? [Go here](tips_tricks.html).
+
 Need some in-depth knowledge? [Go here](documentation.html).
 {: .fs-5 }